Key for the identification of the known mines of British
insects (Diptera and non-Diptera) recorded on Aronia

1 > A circular or oval brownish blotch with a central spiral of dense
blackish frass (British
leafminers), sometimes several mines in one leaf (UKMoths).
Oviposition
is at the leaf underside, well away from the leaf margin; the egg
has a fine reticulate surface. The mine is a rather large, perfectly
circular blotch without a trace of a preceeding corridor. Around
the dark centre the frass, glued to the upper epidermis is arranged
in distinct arcs (Bladmineerders van Europa).Pupation in
a silken cocoon, usually on detritus (British
leafminers).

On Betula, Cotoneaster, Crataegus, Cydonia, Malus, Prunus, Pyrus,
Rosa and Sorbus, but not yet on Aronia, in Britain and on Alnus, Betula, Amelanchier, Aronia,
Chaenomeles, Cotoneaster, Crataegus, Cydonia, Malus, Mespilus,
Prunus, Pyrus and Sorbus elsewhere. Widespread in England
and into Southern Scotland. Also recorded in the Republic of Ireland.
Widespread in continental Europe.